Meder MK20-1-B-100W Cylindrical reed sensor Datasheet

MEDER electronic
MK20/1 Series
Cylindrical
Reed Sensors
DESCRIPTION
MK20/1 sensors are magnetically operated Reed
proximity switches in a cylindrical module, fitted with
interconnect cable. The sensor should be mounted
on a fixed surface with the actuating magnet on
the moving surface. Introduction or removal of the
magnetic field determines the closing and opening
of the Reed Switch.
APPLICATIONS
• Position and limit switch
Pneumatic or hydraulic actuator position
Indication and end travel limit switch
• Door and window contacts
Security system applications
• Level sensor
Use with magnetic floats for water level detection in coffee makers, washing machines or
dishwashers
FEATURES
•
•
•
•
•
Flat side indicates maximum sensitivity
Small size
Other cables, connectors and colors available
Three operate sensitivities available
A choice of cable terminations and lengths are
available
DIMENSIONS
All dimensions in mm [inch]
10
0.394
MK20/1
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MK20/1 Series
MEDER electronic
Cylindrical
Reed Sensors
ORDER INFORMATION
Series
Magnetic
Sensitivity
Cable
Length (mm)
Termination
MK20/1 -
x-
xxx
x
Options
B, C, D
100 *
W
Part Number Example
MK20/1 - C - 100
W
C is the magnetic sensitivity
100 is the cable length (mm)
W is the termination
* Other cable length available.
MAGNETIC SENSITIVITY
Sensitivity
class
Pull In
AT Range
B
10 - 15
C
15 - 20
D
20 - 25
TERMINATION
For wire and termination details please consult factory.
W
The cable cut length includes:
5 mm of wire stripped and tinned
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MEDER electronic
MK20/1 Series
Cylindrical
Reed Sensors
CONTACT DATA
All Data at 20° C
Contact Form →
Contact Ratings
Conditions
Form A
Min.
Typ.
Max.
Unit
Switching Power
Any DC combination of V & A not to
exceed their individual max.‘s
5
W
Switching Voltage
DC or peak AC
80
V
Switching Current
DC or peak AC
0.25
A
Carry Current
DC or peak AC
0.5
A
Static Contact Resistance
w/ 0.5 V & 10 mA
150
mΩ
Dynamic Contact Resistance
Measured w/ 0.5 V & 50 mA ,
1.5 ms after closure
300
mΩ
Insulation Resistance across Contacts
100 volts applied
109
Ω
Breakdown Voltage across Contact
Voltage applied for 60 sec. min.
200
VDC
Operate Time incl. Bounce
Measured w/ 100 % overdrive
0.4
ms
Release Time
Measured w/ no coil suppression
0.1
ms
Capacitance
at 10 kHz cross contact
0.3
pF
Contact Operation *
Must Operate Condition
Steady state field
10
25
AT
Must Release Condition
Steady state field
4
22
AT
Environmental Data
Shock Resistance
1/2 sinus wave duration 11 ms
50
g
Vibration Resistance
From 10 - 2000 Hz
20
g
Ambient Temperature
10°C/ minute max. allowable
-20
70
o
C
Stock Temperature
10°C/ minute max. allowable
-20
70
o
C
Soldering Temperature
5 sec. dwell
260
o
C
Please note: The indicated electrical data are maximum values and can vary downwards when using a more
sensitive switch.
* These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch section. Consult factory if
more detail is required.
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